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Search Results: 1 - 10 of 52 matches for " Korhan Kapucu "
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Relationship between the Level of Helicobacter pylori and Number of Platelets in Non-ITP Patients Who Underwent Gastroscopy  [PDF]
Osman Mavis, Korhan Kapucu
Open Journal of Gastroenterology (OJGas) , 2017, DOI: 10.4236/ojgas.2017.75018
Abstract: Purpose: To investigate both the presence of H. pylori in non-ITP patients who had not undergone H. pylori eradication, and also its relationship (if any) with the number of platelets. Methods: This retrospective study was performed with a total of 220 cases aged between 18 and 65 years who had undergone gastroscopy. H. pylori levels of the participants were investigated, and concurrently their hemograms were analyzed, and their platelet counts were performed. At the same time, cases in the H. pylori positive arm were compared with sub-groups categorized based on their degree of positivity. Results: A statistically significant difference was not detected between platelet counts of the cases based on their H. pylori levels (p = 0.583). A statistically significant difference was detected between H. pylori levels, and distribution of histopathological diagnosis of the cases (p = 0.001; p < 0.01). Conclusion: Our study results revealed that in cases where any primary or secondary factor which might affect platelets is absent, the presence of H. pylori has not any effect on platelet counts.
Classrooms as Communities of Practice: Designing and Facilitating Learning in a Networked Environment
Sakarya University Journal of Education , 2012,
Abstract: Learning is a continuing social action that takes place through interactions with the environment and other individuals. Forming communities of practice provides participants with an environment that combines knowledge and practice and the opportunity to learn through relationships with their peers and practitioners in the community. This study explores the classroom as a community of practice and examines the role classroom activities have in students’ collaborative learning. The study uses a graduate-level public administration course as the case. The classroom activities in this course were designed to enhance peer interaction in the classroom and to facilitate learning by balancing theory and practice. The results of two separate surveys indicate that providing environments that blend practice with classroom knowledge lead to highly positive outcomes. Activities that foster peer interaction result in a dramatic increase in friendship relations between students while leading to only a slight increase in the advice network between students. One reason for this result might be the group projects, which create a silo effect on students and limit their work relationships with peers.
Necrotizing fasciitis: strategies for diagnosis and management
Korhan Taviloglu, Hakan Yanar
World Journal of Emergency Surgery , 2007, DOI: 10.1186/1749-7922-2-19
Abstract: Necrotising fasciitis (NF) is a rare soft tissue infection, primarily involving the superficial fascia and resulting in extensive undermining of the surrounding tissues. If untreated, it is invariably fatal, and thus a high index of suspicion for the diagnosis is required [1]. Mortality remains still high in NF despite use of modern powerful antimicrobial drug regimens and advances in the care of the critically ill patients. Overall mortality ranges from 25 percent to 73 percent in the published literature [2-12]. The disease's manifestation can range from a fulminant presentation to a subtle and insidious development [13].In 1871, a Confederate army surgeon named Joseph Jones first described the disease during the Civil War. By 1918, the cause of the disease was identified as a bacterial infection. It was named "necrotizing fasciitis" in 1952, from necrosis, which means death of a portion of tissue, and fascia, which refers to the fibrous tissues that enclose and connect the muscles. Throughout the 19th and 20th centuries, cases of NF occurred only sporadically and usually remained restricted to military hospitals during wartime, although some civilian population outbreaks have also occurred. The Center for Disease Control and Prevention (CDC) reports that, worldwide, rates of NF increased from the mid-1980s to early 1990s. Increases in the rate and severity of NF are associated with increases in the prevalence of toxin-producing strains of S. pyogenes (M-1 and M-3 serotypes). In 1999, approximately 600 cases of NF were reported in the United States, according to the CDC [14].The diagnosis of primary or idiopathic NF may be challenging because it occurs in the absence of a known causative factor or portal of entry for bacteria [11,15]. In most cases, NF occurs as a result of a known etiology, and classified as secondary NF. Bacterial entry occurs as a result of some precipitating events such as laceration, cut, abrasion, contusion, burn, bite, subcutaneous injectio
Banking and Technology: Information Flow Between the Human and the Machine Through Automated Teller Machines
Mete Feridun,Orhan Korhan
Information Technology Journal , 2005,
Abstract: During their encounter with the Automated Teller Machines (ATMs), humans face up various choices and options, which leads them to make a number of decisions. During this process, accuracy, integrity and speed are the critical elements. The objective of this study was to design a simple human machine system, which would both incorporate these elements and enable humans to use their full capacities while not overdemanding or overloading. The design eliminates the information loss (equivocation) and gain (noise) and augments the process in terms of accuracy, integrity and speed.
Turkish and Argentine Financial Crises: A Univariate Event Study Analysis
Mete Feridun,Orhan Korhan
Journal of Applied Sciences , 2005,
Abstract: This study analyzes the financial crises in Argentina and Turkey in order to find out whether a set of six major macroeconomic indicators account for these crises or not. Evidence suggests that in Turkey, an increase in domestic credit is associated with the 1992, 1994 and 2001 financial crises, whereas an increase in CPI is associated with all crisis episodes. Similarly, a decrease in exchange rate is associated with all crises. A fall in the market index is associated with financial crises in 1991, 1992 and 1994. An increase in M1 is associated only with the crisis in 1992 and a fall in the volume of exports relative to volume of imports is associated with the crisis in 1994. In Argentina, an increase in neither CPI nor domestic credit is associated with any of the financial crises. A decrease in exchange rate is associated with all crises, whereas a fall in the market index is associated with financial crises in 1991 and 2000. An increase in M1, on the other hand, is associated with the crises in 1993, 2000 and 2001.
Reliability and Validity of the Turkish Version of Brandes, Dharwadkar, and Dean’s (1999) Organizational Cynicism Scale: The Case of Organized Industrial Zone, Kayseri
Korhan Karacaoglu,Fatma Ince
Business and Economics Research Journal , 2012,
Abstract: The aim of this research is to investigate the validity and reliability of Turkish version of Organizational Cynicism Scale developed by Brandes et al. (1999). The research was conducted on 300 workers employed in the manufacturing entreprises of Kayseri Organized Industrial Zone. The psychometric properties of the scale were examined by cronbach alpha and item-total corelations for the reliability, and exploratory and confirmatory factor analyses for the validity. As a result of the factor analysis, three factors emerged as in the original form of the scale: affect, cognition, and behavior. The Cronbach’s alpha for the oganizational cynicism scale was 0,91, and affect, cognition and behavior dimensions revealed the coefficients of 0,94, 0,87, and 0,82 respectively. The psycometric properties of the Turkish version of Organizational Cynicism Scale showed that the scale has a satisfactory level of reliability and validity for the Turkish employee sample.
A longitudinal study of emerging networks during natural disaster
Alireza Abbasi,Liaquat Hossain,Naim Kapucu
Computer Science , 2015,
Abstract: We present longitudinal analysis of the evolution of inter-organizational disaster coordination networks during natural disasters. We suggest that social networks are a useful paradigm for exploring this complex phenomenon from both theoretical and methodological perspective aiming to develop a quantitative assessment framework which could aid in developing a better understanding of the optimal functioning of these emerging inter-organizational networks during natural disasters. We highlight the importance of network metrics in order to investigate disaster response coordination networks. Results suggest that in disasters, rate of communication increases and creates the conditions where organizational structures need to move at that same pace to exchange new information.
Benign Giant Cell Tumor of the Foot Originating from Talonavicular Joint  [PDF]
Hakan Cift, Korhan Ozkan, Serkan Senol, Esat Uygur, Harzem Ozger
Open Journal of Orthopedics (OJO) , 2012, DOI: 10.4236/ojo.2012.22011
Abstract: Benign Giant Cell Tumor is a relatively common benign lesion which usually appears as an enlarging painless mass and has a synovial origin. Although benign giant cell tumors generally involve tendon sheaths, they are infrequently documented in the foot. A 45 years old female presented with a complaint of a lump on the top of her left foot. Under general anesthesia with a pneumatic tourtniquet the mass excised with great care not to leave any residual tumor tissue that can cause recurrence. Benign giant cell tumor of the foot can be associated with talonavicular joint capsule which can be detected with MRI imaging and total excision of the lesion is mandatory to prevent recurrence.
Competitive Strategies of the Turkish Manufacturing Enterprises: The Case of Kayseri/Turkey
International Business and Management , 2011,
Abstract: : The competition of firms and their strategies are important issues for the strategic management literature. This study investigates the competitive strategies adopted by the manufacturing enterprises in Kayseri, Turkey. In our research, we use the Porter’s generic strategies to evaluate firms’ competitive behavior. These competitive strategies developed by M.E. Porter are cost leadership, differentiation and focus. In addition to these strategies, this research also examines the internationalization strategy as a competitive strategy. Data was collected from manufacturing enterprises in Kayseri, Turkey by questionnaires. Confirmatory factor analysis within the context of the structural equation modeling (SEM) using LISREL was used to test the hypothesis. As a result the study suggests that while manufacturing enterprises adopt cost leadership, differentiation and internationalization strategies, they do not usually prefer the focus strategy in Turkey. Key words: Competitive strategy; Business strategy; Structural equation modeling
Luminescence Ages of Feldspar Contaminated Quartz from Fluvial Terrace Sediments
Nafiye Gunec Kiyak, M. Korhan Ertura
Geochronometria , 2008, DOI: 10.2478/v10003-008-0007-8
Abstract: This study focuses on obtaining luminescence ages in feldspar contaminated quartz from well-developed fluvial terraces of the Yesilirmak (Iris) river located inside the eastern North Anatolian Fault Shear Zone (NAFZ). We applied a technique based on conventional single-aliquot regenerative-dose (SAR) protocol, modified with an IR pre-treatment to reduce the OSL contribution from feldspar for accurately measuring the dose in quartz. All investigated samples showed an ability to measure a beta dose given in the laboratory, a so called dose recovery test. The dependence of the equivalent dose on thermal treatment was also examined. Dose rate calculations were based on spectral analysis of gamma measurements by a field spectrometer on site. The efforts to establish a chronology using the IR modified SAR technique produced reliable dose results in stratigraphic order. Results were reproducible and grouped broadly between 35-109 ka for Bektemur, 32-36 ka for Kizilca, 19-47 ka for Aksalur and 35-44 ka for Sahinkaya. Obtained results show that the studied area was controlled by tectonic activities within the last 50 ka and the sample Aksalur 2 was the loess deposit formed by aeolian activity.
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